Calling Functions from Stored Procedure SQL

during my development work i stuck in a problem that sole by calling function (an inline Function) in my stored procedure .
In each procedures I used to Convert Rupees to Dollar so I make a function named Dollar converter here is the example

Create procedure My_SP(@from_Date datetime, @to_Date datetime )
As
Begin
Select carmodel,carName,CarPrice/DollarRate(Day)

End

Create Function DollarRate
(@date date)
return numeric(7,2)
(
Select ForexRate from ForexExchange where ForexRateDate = @date
)